Modificar usuario SENDER que envía correo mediante SO_NEW_DOCUMENT_ATT_SEND_API1

 Muy fácil / Very easy:

Antes de ejecutar la FM SO_NEW_DOCUMENT_ATT_SEND_API1, debemos actualizar SY-UNAME, por supuesto, el usuario que vamos a asignar debe tener asociado su e-mail correspondiente en la SU01, or ejemplo:

Before executing the FM SO_NEW_DOCUMENT_ATT_SEND_API1, we must update SY-UNAME, of course, the user that we are going to assign must have its corresponding e-mail associated in SU01, for example.

           sy-uname = ls_xekko-ernam.
    

          CALL FUNCTION 'SO_NEW_DOCUMENT_ATT_SEND_API1'
            EXPORTING
              document_data              = ls_document_data
              put_in_outbox              = abap_on
              commit_work                = abap_on
            TABLES
              packing_list               = lt_packing_list[]
              object_header              = t_object_header[]
              contents_txt               = t_contents_txt[] " Body message
              contents_bin               = lt_contents_bin[]
              receivers                  = lt_receivers[]
            EXCEPTIONS
              too_many_receivers         = 1
              document_not_sent          = 2
              document_type_not_exist    = 3
              operation_no_authorization = 4
              parameter_error            = 5
              x_error                    = 6
              enqueue_error              = 7
              OTHERS                     = 8.